Is the pump pressure gauge related to the inlet pressure?
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Is the pump’s outlet pressure gauge related to the inlet pressure? Could everyone please help vote?
The inlet pressure is high, so the range of the outlet pressure gauge should also be set to a higher value
The head of a water pump refers to the height that the pump is capable of lifting water to. It is an important operational parameter of the pump, also known as head. It can be expressed as an increase in the pressure head, kinetic energy head, and potential energy head of the fluid, that is, H = (p2 – p1)/ρg + (c2² – c1²)/2g + z2 – z1. Here, H represents the head, in meters ； p1, p2 —— Pressure of the liquid at the inlet and outlet of the pump, Pa ； c1, c2 —— Flow velocity of the fluid at the inlet and outlet of the pump, m/s ； z1, z2 —— inlet and outlet heights, m ； ρ —— liquid density, kg/m3 ； g — gravitational acceleration, m/s2. ----------------------------------------------------------------- Export P2=
You can take a look at the introduction to the concept of NPSH in Chemical Engineering Principles
It is related to this: the inlet pipeline of the pump is generally thicker than the outlet pipeline, and after compression by the pump, the pressure rises again. With high import pressures, it’s definitely better to choose a pressure gauge with a larger range for exports.